SFM-144-02-STL-D-LC SAMTEC Connector (Other) In Stock
Samtec SFM-144-02-STL-D-LC is an 88-position dual-row surface mount socket strip with 0.050" (1.27 mm) pitch, providing high-reliability board-to-board signal connectivity at fine pitch. Gold-plated contacts are rated for 1 A per pin and the connector operates from -55°C to +125°C. Available in loose (LC) packaging from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 88
- Lifecycle
- ACTIVE
- Datasheet
- SFM-144-02-STL-D-LC Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SFM-144-02-STL-D-LC?
- 88-position dual-row SMT socket at 0.050" (1.27 mm) pitch enabling high pin-count mezzanine interconnects in space-constrained PCB layouts
- Gold-plated contacts rated at 1 A per pin providing stable low-resistance connections through thousands of mating cycles
- STL (stacking) configuration variant enabling precise board-to-board stack height control in multilayer module assemblies
- LC (loose/low-cost) packaging ideal for prototype and low-to-medium volume production without tape-and-reel setup costs
What is SFM-144-02-STL-D-LC used for?
The SFM-144-02-STL-D-LC is designed for high-density mezzanine board-to-board applications requiring 88 dual-row signal connections at 0.050" pitch in a compact SMT footprint. It is commonly used in embedded computing modules, FPGA expansion boards, and industrial I/O carrier cards where a stacking connector variant (STL) is needed to achieve a defined board separation height. The wide operating temperature range of -55°C to +125°C also supports defense avionics and ruggedized industrial platforms.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SFM-144-02-STL-D-LC datasheet?
SFM-144-02-STL-D-LC Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-144-02-STL-D-LC?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What does the STL suffix in SFM-144-02-STL-D-LC signify, and how does it affect board-to-board stack height?
The STL suffix in SFM-144-02-STL-D-LC indicates a stacking variant optimized for controlled board-to-board separation in mezzanine assemblies. This means the connector is designed to mate at a specific defined stack height, allowing designers to specify precise PCB separation — typically in the range of 4 mm to 20 mm depending on the mating plug header selected. This is critical in multilayer module stacks where fixed height tolerances are required for chassis fit or thermal management spacers between boards.
How many positions and rows does SFM-144-02-STL-D-LC have, and what density advantage does 0.050" pitch provide?
The SFM-144-02-STL-D-LC provides 88 total positions in a dual-row layout with 44 contacts per row at 0.050" (1.27 mm) pitch. This fine pitch delivers twice the connection density of standard 0.100" pitch connectors for the same PCB footprint length, making it highly effective for FPGA daughter cards, high-speed data acquisition modules, and any design requiring dense signal routing in limited board area. The 88-pin count satisfies many parallel bus architectures and high-channel-count sensor interfaces.
What current and temperature ratings does SFM-144-02-STL-D-LC offer for ruggedized industrial or defense boards?
Each contact in the SFM-144-02-STL-D-LC is rated for 1 A continuous current, making the connector suitable for signal lines and light logic power distribution. The operating temperature range spans -55°C to +125°C, which satisfies industrial and MIL-spec temperature requirements for harsh-environment deployments. Gold-plated contacts maintain stable contact resistance throughout this thermal range, ensuring consistent signal integrity even in applications subject to significant temperature cycling.
Is SFM-144-02-STL-D-LC interchangeable with the tape-and-reel version, and when should each packaging format be chosen?
The SFM-144-02-STL-D-LC (LC = loose/low-cost) and its tape-and-reel (TR) counterpart are electrically and mechanically identical; only the packaging format differs. The LC version is preferable for prototyping, engineering validation, and low-volume production runs where per-unit quantity is typically fewer than 100 pieces and manual placement is acceptable. For automated SMT production at volumes exceeding several hundred units, the TR (tape-and-reel) variant is recommended to support pick-and-place feeders, reduce placement error, and lower per-connector handling cost at scale.
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